Umno president Ahmad Zahid Hamidi has refuted the claim by former prime minister Dr Mahathir Mohamad that Umno would contest in all seats held by Bersatu and those won by Umno but whose MPs defected to Bersatu.

Responding to the claim Mahathir made in his blog, chedet, Zahid said Mahathir had perhaps obtained his information from unreliable sources...